Home / 1,288,665.84-1,778,254.80-744,836.85

Finding the Fourth Proportional to 1,288,665.84, 1,778,254.80 and 744,836.85

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Solution

The fourth proportional to 1,288,665.84, 1,778,254.80 and 744,836.85 is: 1,027,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,665.84 : 1,778,254.80 = 744,836.85 : x
  2. Step 2: Convert to fraction form
    1,288,665.84/1,778,254.80 = 744,836.85/x
  3. Step 3: Cross multiply
    1,288,665.84x = 1,778,254.80 × 744,836.85
  4. Step 4: Simplify right side
    1,288,665.84x = 1,324,509,703,729.38
  5. Step 5: Solve for x
    x = 1,324,509,703,729.38/1,288,665.84
  6. Step 6: Final answer
    x = 1,027,814.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.